Public bug reported:

[Impact]

Google has requested backports for the following upstream patches:

f086edef71be7174a16c1ed67ac65a085cda28b1 tcp: add sysctl_tcp_rto_min_us
5258da376f3c51332f917087361caf4c76e9e84f tcp: derive delack_max with 
tcp_rto_min helper

[Fix]

Noble:
* Backported due to context conflicts
Jammy: 
* Clean cherry-pick for pre-req commit f086edef71be
* Fixed context the same context conflicts as Noble, plus a few others
  due to other missing commits that add unrelated TCP sysctls

[Test plan]
Build and boot tested, also ran the kernel selftests in
tools/testing/selftests/net to ensure basic network functionality
wasn't compromised.

[Where problems could occur]
Since this this adds new networking functionality, any problems here
would impact networking on affected systems.

[Other info]
#SF 00392021

** Affects: linux-gcp (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: linux-gcp (Ubuntu Jammy)
     Importance: Undecided
         Status: New

** Affects: linux-gcp (Ubuntu Noble)
     Importance: Undecided
         Status: New

** Also affects: linux-gcp (Ubuntu Noble)
   Importance: Undecided
       Status: New

** Also affects: linux-gcp (Ubuntu Jammy)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/2076950

Title:
  Backport sysctl_tcp_rto_min_us

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